In a large bowl, place flour.
In a separate bowl, whisk buttermilk, eggs, honey, and vanilla extract until well combined.
Pour the wet ingredients into the flour and gently stir until just combined; do not overmix.
Fold in 3/4 cup of the blueberries.
Heat a non-stick skillet or griddle over medium heat and lightly grease.
Pour about 1/4 cup of batter per pancake onto the skillet and cook until bubbles form on the surface, about 2–3 minutes.
Flip and cook until golden brown and cooked through, about 2 minutes more.
Serve pancakes warm, spoon blueberry juice over the top, and drizzle lightly with maple syrup.